Re: 9a for Sale in the UK , bike question
Neither, AFAIK. They advertise as “aerospace tubing” some variety of chrome-moly. And yes, I was a serious cyclist in the 70s-80s.
?
Gary
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Re: 9a for Sale in the UK , bike question
??? ??? Were those Viscounts Renyolds or Columbus tubing ?
??? animal
On 10/18/24 10:25 AM, david pennington
via groups.io wrote:
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Adam,
I'm sorry to learn you need
to sell your 9A. I know how I'd hate to part with my 9C!
Will you still be in the
group?
Will you still have your
hands in making things?
I ask out of 100% self
interest. I have a 1970s Viscount bicycle for which I need
to buy at least one bolt. The thread is English and only
available here for a king's ransom, if at all. I'd like to
have a "friend" on that side of the pond who'd help me
obtain them. I'm perfectly willing to not only cover the
actual cost, but also add remuneration for the effort
involved.
All the best,
Dave
David W. Pennington
Florida
720-442-3744
A change of circumstances means I need to sell my 9a
lathe, I'm not sure how many folks here are from the UK,
but I thought the decent thing to do would be to offer
it here first before heading to Ebay.
?
If anyone is interested let me know and I can email
pics and info directly.
?
I was never very active on the posting side , but as
I fear this will likely be the end of my Southend
ownership, this seems like an opportunity to thank all
those who have helped me over the years and maintain
this group, especially Jim B (thanks for the
leadscrew).?
?
Regards
?
Adam
|
Re: 9a for Sale in the UK
Adam,
I'm sorry to learn you need to sell your 9A. I know how I'd hate to part with my 9C!
Will you still be in the group?
Will you still have your hands in making things?
I ask out of 100% self interest. I have a 1970s Viscount bicycle for which I need to buy at least one bolt. The thread is English and only available here for a king's ransom, if at all. I'd like to have a "friend" on that side of the pond who'd help me obtain them. I'm perfectly willing to not only cover the actual cost, but also add remuneration for the effort involved.
All the best,
Dave
David W. Pennington
Florida 720-442-3744
On Monday, October 7, 2024 at 07:27:35 AM EDT, benjithestupiddog via groups.io <benjithestupiddog@...> wrote:
A change of circumstances means I need to sell my 9a lathe, I'm not sure how many folks here are from the UK, but I thought the decent thing to do would be to offer it here first before heading to Ebay.
?
If anyone is interested let me know and I can email pics and info directly.
?
I was never very active on the posting side , but as I fear this will likely be the end of my Southend ownership, this seems like an opportunity to thank all those who have helped me over the years and maintain this group, especially Jim B (thanks for the leadscrew).?
?
Regards
?
Adam
|
Re: KNOWN DIFFERENCES BETWEEN 405 AND LATER LATHES2.doc
True, but both spindles have the integral 20 DP gear. BTW: I have the left-hand half-nuts for the 405 for sale(N.O.S.) Ted
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On Oct 14, 2024, at 8:33 PM, Jim_B <jim@...> wrote:
? Another thing I just remembered.? The 405 used 20 DP change gears.? ABC use 18 DP.? On Oct 14, 2024, at 8:24?PM, Michael Burge <mjmburge@...> wrote:
? Thank you for the info Tom
For some reason the download file you sent me popped up with an add to purchase adobe premium to view the file...
I dug this up. It may help
Jim B,
--
Jim B
-- Jim B
|
Re: KNOWN DIFFERENCES BETWEEN 405 AND LATER LATHES2.doc
Oh yes. The 405 thrust bearing is a washer.? ABC spindles are ball and race. That creates a size problem.?
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On Oct 14, 2024, at 8:33?PM, Jim_B <jim@...> wrote:
? Another thing I just remembered.? The 405 used 20 DP change gears.? ABC use 18 DP.? On Oct 14, 2024, at 8:24?PM, Michael Burge <mjmburge@...> wrote:
? Thank you for the info Tom
For some reason the download file you sent me popped up with an add to purchase adobe premium to view the file...
I dug this up. It may help
Jim B,
--
Jim B
-- Jim B
--
Jim B
|
Re: 1.375-spindel and 1.5-8 spindle -in-headstock-.jpg
The ABC spindle is the lower picture.
(Actually it’s a 10K spindle).
Jim B,
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On Oct 14, 2024, at 8:40?PM, Jim_B <jim@...> wrote:
?I found these.
Above 1.375
1.5 spindle
Jim B,
--
Jim B
<1.375-spindel-in-headstock-.jpg>
<1.5-8-spindle-showing-beari.jpg>
--
Jim B
|
1.375-spindel and 1.5-8 spindle -in-headstock-.jpg
I found these.
Above 1.375
1.5 spindle
Jim B,
--
Jim B
|
Re: KNOWN DIFFERENCES BETWEEN 405 AND LATER LATHES2.doc
Another thing I just remembered.? The 405 used 20 DP change gears.? ABC use 18 DP.?
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On Oct 14, 2024, at 8:24?PM, Michael Burge <mjmburge@...> wrote:
? Thank you for the info Tom
For some reason the download file you sent me popped up with an add to purchase adobe premium to view the file...
I dug this up. It may help
Jim B,
--
Jim B
--
Jim B
|
Re: KNOWN DIFFERENCES BETWEEN 405 AND LATER LATHES2.doc
Thank you for the info Tom
For some reason the download file you sent me popped up with an add to purchase adobe premium to view the file...
I dug this up. It may help
Jim B,
--
Jim B
|
KNOWN DIFFERENCES BETWEEN 405 AND LATER LATHES2.doc
I dug this up. It may help
Jim B,
--
Jim B
|
Welcome? I am a former owner of a 405.? The ABC spindles will physically fit on the diameters but there’s an issue with the length. ? I don’t remember exactly what but I believe it can be over come. The ABC spindles are longer as I recall.?
The 405 has entirely different felts.? They are cut into strips and fit into slots in the top of spindles.? It’s important that they be continuous and clean.? There is no oil well in the bottom of the spindles, like the ABC, so they must be oiled at every use.?
There shouldn’t be much more information in the files section.?
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On Oct 14, 2024, at 3:17?PM, mjmburge@... wrote:
? Hello all
New to this group restoring a nice condition 405-y shipped dec 1934
Can anyone tell me if the 1 1/2 8 spindles from model a b c will fit the 405??
Is there a felt replacement kit available specific to the 405 or will any of the a b c kits work?
I have replaced all of the cross/compound feed nuts added the needle bearing fix for axial play an re machined the original 1 3/8 10 back plate to fit a nice bison chuck and added an aloris axa tool post.
Im seeking any information on parts compatibility between the 405 "grandfather" and the model a b c
Thank you
--
Jim B
|
Hello all
New to this group restoring a nice condition 405-y shipped dec 1934
Can anyone tell me if the 1 1/2 8 spindles from model a b c will fit the 405??
Is there a felt replacement kit available specific to the 405 or will any of the a b c kits work?
I have replaced all of the cross/compound feed nuts added the needle bearing fix for axial play an re machined the original 1 3/8 10 back plate to fit a nice bison chuck and added an aloris axa tool post.
Im seeking any information on parts compatibility between the 405 "grandfather" and the model a b c
Thank you
|
Re: Eliminating the step pulleys
They are dual v-belts.? The crown is still there. They tend to stay in the middle until heavy load is applied.? The flange will hit the top of the v and yes will occasionally wear the outer belt edge, but the bottom is doing the driving. ?It doesn’t get a lot of use right now. Rick ?
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From: [email protected] <[email protected]> On Behalf Of eddie.draper@... via groups.io
Sent: Monday, October 14, 2024 6:48 AM
To: Rick Swineford <terrapinsystems@...>; [email protected]
Subject: Re: [SouthBendLathe] Eliminating the step pulleys? Rick, if you add a flange to stop the belt wandering off, it will chew the edge of the belt, and the belt might even climb onto it. ?Flat belts need a crowned profile on the pulley, and you should check whether yours still has this. ?Compare the step in use with the others. ?If only one of the speed pulleys has been used for an extended period and there has been some slippage, it is possible that the pulley is worn hollow. ?So long as there is some metal left, you can machine the crown back onto it. ?I've never tried it, but a coat of hard epoxy filler might make up any material shortfall. ? All counter intuitive, I know, but that's how they work. ? Eddie
? ------ Original Message ------
From: terrapinsystems@...
To: [email protected]
Sent: Sunday, October 13th 2024, 23:19
Subject: Re: [SouthBendLathe] Eliminating the step pulleys
? Just to throw another thought in the discussion.? I inherited a 1922 15”.? It came converted to top mounted 4 spd truck transmission driven by the original motor.? It has twin v-belts from the motor to the transmission input and twin v-belts to the step pulley, 2nd from the headstock.? Under very heavy loads the belts will walk off the step pulley (working on a collar to stop that) but it also adds a little safety.? I mounted a magnetic pickup on the change gear end of the headstock shaft and connected a digital tach.? Top rpm is 988.? I am attaching the speed chart and photo of setup. Rick Swineford ? ? ??? I think the top speed for my 9A was 1000 RPM . Pretty sure ya can set limits on the VFD . animal On 10/13/24 11:24 AM, Rick wrote: On Sun, Oct 13, 2024 at 01:16 PM, Ron Goodger wrote: Well, I have decided against eliminating the step pulleys.? It would be much more complicated than just replacing the motor and installing the VFD? Then I will have full options available as to power.? With the VFD and three phase motor I will easily be able to overspeed the lathe.? Does anyone know what the physical speed limits of the lathe mechanism is?? At his point, I see no reason to ever do so.? Just wondering ?
? My concern is the plain bearings in the headstock. I don't run either my SB9A or my SB13 much above the listed top speed of either lathe.
|
Re: Eliminating the step pulleys
Rick, if you add a flange to stop the belt wandering off, it will chew the edge of the belt, and the belt might even climb onto it. ?Flat belts need a crowned profile on the pulley, and you should check whether yours still has this. ?Compare the step in use with the others. ?If only one of the speed pulleys has been used for an extended period and there has been some slippage, it is possible that the pulley is worn hollow. ?So long as there is some metal left, you can machine the crown back onto it. ?I've never tried it, but a coat of hard epoxy filler might make up any material shortfall. ? All counter intuitive, I know, but that's how they work. ? Eddie
?
------ Original Message ------
From: terrapinsystems@...
To: [email protected]
Sent: Sunday, October 13th 2024, 23:19
Subject: Re: [SouthBendLathe] Eliminating the step pulleys
? Just to throw another thought in the discussion.? I inherited a 1922 15”.? It came converted to top mounted 4 spd truck transmission driven by the original motor.? It has twin v-belts from the motor to the transmission input and twin v-belts to the step pulley, 2nd from the headstock.? Under very heavy loads the belts will walk off the step pulley (working on a collar to stop that) but it also adds a little safety.? I mounted a magnetic pickup on the change gear end of the headstock shaft and connected a digital tach.? Top rpm is 988.? I am attaching the speed chart and photo of setup. Rick Swineford ? ? ??? I think the top speed for my 9A was 1000 RPM . Pretty sure ya can set limits on the VFD . animal On 10/13/24 11:24 AM, Rick wrote: On Sun, Oct 13, 2024 at 01:16 PM, Ron Goodger wrote: Well, I have decided against eliminating the step pulleys.? It would be much more complicated than just replacing the motor and installing the VFD.? Then I will have full options available as to power.? With the VFD and three phase motor I will easily be able to overspeed the lathe.? Does anyone know what the physical speed limits of the lathe mechanism is?? At his point, I see no reason to ever do so.? Just wondering. ?
? My concern is the plain bearings in the headstock. I don't run either my SB9A or my SB13 much above the listed top speed of either lathe.
|
Re: Eliminating the step pulleys
Thost truck transmission mods were pretty popular back in the day
as the kids say . I always wondered if there was a article in a
old,old Popular Mechanics or like mag showing the mod .
animal
On 10/13/24 3:19 PM, Rick Swineford
wrote:
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Show quoted text
Just
to throw another thought in the discussion.? I inherited a
1922 15”.? It came converted to top mounted 4 spd truck
transmission driven by the original motor.? It has twin
v-belts from the motor to the transmission input and twin
v-belts to the step pulley, 2nd from the
headstock.? Under very heavy loads the belts will walk off
the step pulley (working on a collar to stop that) but it
also adds a little safety.? I mounted a magnetic pickup on
the change gear end of the headstock shaft and connected a
digital tach.? Top rpm is 988.? I am attaching the speed
chart and photo of setup.
Rick
Swineford
?
?
??? I think the top speed for my 9A was 1000 RPM . Pretty
sure ya can set limits on the VFD .
animal
On 10/13/24 11:24 AM, Rick wrote:
On Sun, Oct 13, 2024 at 01:16 PM, Ron
Goodger wrote:
Well, I have decided against
eliminating the step pulleys.? It would be much
more complicated than just replacing the motor and
installing the VFD.? Then I will have full options
available as to power.? With the VFD and three
phase motor I will easily be able to overspeed the
lathe.? Does anyone know what the physical speed
limits of the lathe mechanism is?? At his point, I
see no reason to ever do so.? Just wondering.
?
?
My concern is the plain bearings in the
headstock. I don't run either my SB9A or my SB13 much
above the listed top speed of either lathe.
|
Re: Eliminating the step pulleys
Just to throw another thought in the discussion.? I inherited a 1922 15”.? It came converted to top mounted 4 spd truck transmission driven by the original motor.? It has twin v-belts from the motor to the transmission input and twin v-belts to the step pulley, 2nd from the headstock.? Under very heavy loads the belts will walk off the step pulley (working on a collar to stop that) but it also adds a little safety.? I mounted a magnetic pickup on the change gear end of the headstock shaft and connected a digital tach.? Top rpm is 988.? I am attaching the speed chart and photo of setup. Rick Swineford ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of mike allen
Sent: Sunday, October 13, 2024 2:35 PM
To: [email protected]
Subject: Re: [SouthBendLathe] Eliminating the step pulleys? ??? I think the top speed for my 9A was 1000 RPM . Pretty sure ya can set limits on the VFD . animal On 10/13/24 11:24 AM, Rick wrote: On Sun, Oct 13, 2024 at 01:16 PM, Ron Goodger wrote: Well, I have decided against eliminating the step pulleys.? It would be much more complicated than just replacing the motor and installing the VFD.? Then I will have full options available as to power.? With the VFD and three phase motor I will easily be able to overspeed the lathe.? Does anyone know what the physical speed limits of the lathe mechanism is?? At his point, I see no reason to ever do so.? Just wondering. ?
? My concern is the plain bearings in the headstock. I don't run either my SB9A or my SB13 much above the listed top speed of either lathe.
|
Re: Eliminating the step pulleys
On Sun, Oct 13, 2024 at 02:35 PM, mike allen wrote:
I think the top speed for my 9A was 1000 RPM . Pretty sure ya can set limits on the VFD .
?
9A has a listed speed of 1270 rpm.
?
I have a tach on my SB13. ?If I run the VFD at 60 hz in high gear, it shows within 10-20 rpm of the factory listed speed of 940 rpm. ?I have turn the frequency up and ran it to about 1100 rpm. ?The bearings got a little warm, but not hot. ?I usually don't run it anywhere near that rpm. Mine has a 3 step pulley, most of the time I just leave the belt in the middle and adjust speed with the VFD. I run the motor from 30 to 90 hz.
|
Re: Eliminating the step pulleys
??? I think the top speed for my 9A was 1000 RPM . Pretty sure ya
can set limits on the VFD .
animal
On 10/13/24 11:24 AM, Rick wrote:
toggle quoted message
Show quoted text
On Sun, Oct 13, 2024 at 01:16 PM, Ron Goodger wrote:
Well, I have decided against eliminating the step
pulleys.? It would be much more complicated than just
replacing the motor and installing the VFD.? Then I will
have full options available as to power.? With the VFD
and three phase motor I will easily be able to overspeed
the lathe.? Does anyone know what the physical speed
limits of the lathe mechanism is?? At his point, I see
no reason to ever do so.? Just wondering.
?
?
My concern is the plain bearings in the headstock. I don't
run either my SB9A or my SB13 much above the listed top speed of
either lathe.
|
Re: Eliminating the step pulleys
On Sun, Oct 13, 2024 at 01:16 PM, Ron Goodger wrote:
Well, I have decided against eliminating the step pulleys.? It would be much more complicated than just replacing the motor and installing the VFD.? Then I will have full options available as to power.? With the VFD and three phase motor I will easily be able to overspeed the lathe.? Does anyone know what the physical speed limits of the lathe mechanism is?? At his point, I see no reason to ever do so.? Just wondering.
?
?
My concern is the plain bearings in the headstock. I don't run either my SB9A or my SB13 much above the listed top speed of either lathe.
|
Re: Eliminating the step pulleys
Well, I have decided against eliminating the step pulleys.? It would be much more complicated than just replacing the motor and installing the VFD.? Then I will have full options available as to power.? With the VFD and three phase motor I will easily be able to overspeed the lathe.? Does anyone know what the physical speed limits of the lathe mechanism is?? At his point, I see no reason to ever do so.? Just wondering.
|
Jim_B
Michael Burge
Rick Swineford
Ron Goodger